Number System Questions With Solutions Q No 41 to Q No 60
In this post, you will get some important Number System Questions with Solutions Q No 41 To Q No 60. Questions will be solved soon.
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Ques No 41:
What is the unit digit of N, if N = (289)5 x (587)7 x (1156)9 x (17)15
Options:
A. 8
B. 5
C. 3
D. 6
Solution:
Ques No 42:
The numbers 1 to 29 are written side by side as follows 1234567891011……2829. If the number is divided by 9, then what is the remainder?
Options:
A. 0
B. 1
C. 2
D. 3
Solution:
Ques No 43:
The smallest integral value of x, for which 
Options:
A. 1
B. -1
C. 7
D. -7
Solution:
Ques No 44:
The sum of the digits of two digit number is 11, if the digits are reversed the number decreases by 45 The number is
Options:
A. 38
B. 68
C. 74
D. 83
Solution:
Ques No 45:
If a2 – b2 = 13 where a and b natural numbers, then value of a is
Options:
A. 6
B. 7
C. 8
D. 9
Solution:
Ques No 46:
If 562 – 492 = 7p, then p is equal is
Options:
A. 115
B. 95
C. 105
D. 104
Solution:
Ques No 47:
When 75% of a two-digit number is added to it, the digits of the number are reversed. Find the ratio of the unit’s digit to the ten’s digit in the original number
Options:
A. 1:2
B. 1:4
C. 2:1
D. 3:2
Solution:
Ques No 48:
How many zeroes will be there in the expansion of the expression 11×22×33×44……..×100100?
Options:
A. 1200
B. 1232
C. 1300
D. 1296
Solution:
Ques No 49:
The number obtained by interchanging the two digits of a two digit number is less than the original number by 27. If the difference between the two digits of the number is 3, what is the original number?
Options:
A. 74
B. 63
C. 85
D. Can’t be determined
Solution:
Ques No 50:
If x is a positive integer such that 2x + 12 is perfectly divisible by ‘x’, then the number of possible values of ‘x’ is
Options:
A. 2
B. 5
C. 6
D. 12
Solution:
Ques No 51:
If A = , B = , C = (0.3)2, D = (-1.2)2, then
Options:
A. A > B > C > D
B. D > A > B > C
C. D > B > C > A
D. D > C > A > B
Solution:
Ques No 52:
The unit digit in the expression (36234)(33512)(39180)(5429)–(25123)(31512) will be
Options:
A. 8
B. 0
C. 6
D. 5
Solution:
Ques No 53:
Find the value of x in 
Options:
A. 1
B. 3
C. 6
D. 12
Solution:
Ques No 54:
xy is a number that is divided by ab where xy < ab and gives a result 0. Xyxyxy. . . then ab result
Options:
A. 11
B. 33
C. 99
D. 66
Solution:
Ques No 55:
V is product of first 41 natural numbers. A = V + 1. The number of primes among A + 1, A + 2, A + 3, A + 4………………A + 39, A + 40 is
Options:
A. 1
B. 2
C. 3
D. 0
Solution:
Ques No 56:
If n is integer such that n x n = n + n, then the number of such number n, is
Options:
A. 0
B. 1
C. 2
D. 3
Solution:
Ques No 57:
Given that a, b are odd and c, d are even, then
Options:
A. a2 – b2 + c2 – d2 is always divisible by 4
B. abc + bcd + cda + dab is always divisible by 4
C. a4 + b4 + c3 + d3 + c2b + a2b is always odd
D. a + 2b + 3c + 4d is odd
Solution:
Ques No 58:
A positive number whose reciprocal equals one less than the number, is
Options:
A.
B.
C.
D.
Solution:
Ques No 59:
Which is one of the numbers listed below is not a divisor of the number N = (230 – 1), is equal to
Options:
A. 25 – 1
B. 25 + 1
C. 26 – 1
D. 210 + 1
Solution:
Ques No 60:
The remainder when (x51 + 51) is divided by (x + 1), is:
Options:
A. 0
B. 1
C. 51
D. 50
Solution:
